Variations of the Vertical Between Mizusawa and Washington, D.C. and Those of the Geomagnetic Field

  1. D. E. Smylie and
  2. Raymond Hide
  1. Chuichi Kakuta

Published Online: 29 MAR 2013

DOI: 10.1029/GM046p0107

Structure and Dynamics of Earth's Deep Interior

Structure and Dynamics of Earth's Deep Interior

How to Cite

Kakuta, C. (1988) Variations of the Vertical Between Mizusawa and Washington, D.C. and Those of the Geomagnetic Field, in Structure and Dynamics of Earth's Deep Interior (eds D. E. Smylie and R. Hide), American Geophysical Union, Washington, D. C.. doi: 10.1029/GM046p0107

Author Information

  1. International Latitude Observatory of Mizusawa, Mizusawa, Iwate, Japan

Publication History

  1. Published Online: 29 MAR 2013
  2. Published Print: 1 JAN 1988

ISBN Information

Print ISBN: 9780875904504

Online ISBN: 9781118666562

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Keywords:

  • Earth—Core—Congresses;
  • Geodynamics—Congresses

Summary

Variations of the optical observations of time and latitude residuals are derived from two stations, the ILOM arid the USNO. The latitude observation residuals show a correlation with local variations of the horizontal component and the X component of the geomagnetic field. However, time observation residuals show a correlation with local variations of the first time derivative of the geomagnetic field Y component.

Fluid motions in the fluid core are examined by taking into account the temperature gradient in the meridional direction near the CMB. The result shows the possibility of a Rossby type wave to induce variations of the disturbing potential and those of the vertical.